Remove duplicated block on custom error messages

[5minpause]

Almost the same block on custom error messages can be found in lines 336–345.

const name = z.string({
  required_error: "Name is required",
  invalid_type_error: "Name must be a string",
});

Leaves the question whether the properties in that object can be both =>
required/required_error and invalid/invalid_type_error

[colinhacks]

Wow good catch. invalid and required aren't actually supported at all...only required_error and invalid_type_error.